Adjustable work-supporting stand



I ATTORNEY.

F. P. SCHAAF ADJUSTABLE WORK SUPPORTING STAND Filed Nov. 12. 1923Patented es. 2, 1924.

FRANK P. SCHAAF, OF CHANDLERVILLE, ILLINOIS.

ADJUSTABLE WORK-SUPPORTING STAND.

Appflication filed November 12, 1923.

To all whom it may concern: 7

Be it known that I, FRANK P. SOHAAF, a citizen of the United States,residing at Chandler-ville, in the county of Cass and State of Illinois,have invented new and useful Improvements in Adjustable VVork-Supporting Stands; and I do hereby declare that the following is a full,clear, and exact description of the invention, which will enable othersskilled in the art to which it appertains to make and use the same.

This invention relates to a stand for supporting a piece of work uponwhich various operations are to be performed.

lllore particularly, the invention relates to an adjustable stand uponwhich to support an engine crank-case for repairs, such as weldingoperations and the like.

It is quite often necessary to weld various parts of a crank-case and inorder to properly position the same in order to hold the flow of metalupon the place being treated some means must be employed foreX-peditious work other than merely propping the work in the usualinsecure manner.

To the end that my invention may be understood I have provided theaccompanying drawing wherein Figure 1 is an elevation of my supportshowing a crank-case supported thereon.

Figure 2 shows in perspective a part for holding one end of thecrankcase.

Figure 3 is a longitudinal section of a securing means for a part of thedevice.

Figure is a plan of a securing means for another part of the device.

Figure a sectional elevation of a. clamping ar angen'ient.

Figure 6 is a side elevation of the parts shown in Figure 5, and

Figure 7 is a plan of portions of supporting legs, showing an upright orstandard in horizontal position.

The numeral 1 design-ates a standard which preferably has detachablelegs '2. The lower end of the standard is provided "with an enlargement3 having sockets 4: at four places, as shown in the present instance,which. receive the upturned ends 5 of the legs, a flange 6 on each saidleg supporting the standard. This, however, is merely a preferredconstruction. The upper extremity of the standard is provided preferablywith an enlargement or head 7 having one of its faces radial teeth orserrations 8 which receive a similarly scr- Serial No. 674,155.

rated face of what I shall term an arm, 9, held adjustably on saidstandard through a securing device represented in the present instanceby a bolt and a clamping 10 and 11 respectively.

The upper end of the arm 9 has pivoted thereto by means of a bolt 12,for example, a fitting consisting of a plate 13 having a pair of ears 11 through both of which extends a length of rod or pipe 15 supported atits middle and adapted to turn freely therein.

Secured to each end of the rod or pipe 15 in suitable manner is a crossarm 16 both of which carrythe work which is secured in place by setscrews 17 for example. A semi-circular member 18 encircles at itsextremities the said rod or pipe at opposite sides of the centralsupport, the ears 14L, oneof said extremities receiving the rod or pipein snug working manner. The bore of the other extremity, however, ismuch larger and receives into it a sleeve 19, Figure 3, having at oneend a flange 20 to bear against one side of said extremity while theother end of the sleeve is threaded and receives an internally threadedportion of a clamping hand-wheel 21, said sleeve being secured to therod or pipe 15 by means of a pin 22. A collar 23 is secured in similarmanner to the rod or pipe outside the other extremity of the member 18.

It may now be seen that the rod or pipe, with the work thereon, may beturned axially within the member 18 by loosening the liai'id-wheel 21and may be secured in any desired position by setting up said wheelsince the latter clai'nps the extremity of the member 18 between it andthe flange 20.

h l ounted upon the arm 9 is a strap 2! which is adapted to clamp themember 18 between it and said arm a threaded handle 25 and a bolt 26serving for that purpose.

Particularly in oxyacetylene welding operations it is necessary to placethat part of the work to be treated'in a level position and thereforethe work must he carried in such. manner that it may be tilted in alldirections in order to enable the workman to thus level any portionthereof. That this may be done, the arm 9 may be tilted upon thestandard 1. as shown in Figure 1, as one of the possible positions, andthere held. Again, the clamping means at 25, 26 permits the rod or pipe15 to be tilted as shown in dot-ted lines in Figure 1, while theclamping ill) lll)

hand-wheel 21v of that figure admits of rotating the work about the axisof said rod or pipe. In this manner all points upon the work may beleveled and readily operated upon with a minimum of loss ottime inpreparing therefor. l/Vhile I have described and shown a preferredconstruction of the stand and its parts it is not my intention tobeconfined to such since various changes are possiblejas may besuggested as making for convenience and quickness of adjustment. 7

Due to the construction provided or equiv alents thereof the severalparts, including the legs 2, maybe readily disassembled and packed in asmall compass for easy transportation.

I claim: 7 1. A stand for supportmgthe crank case of an automobileincluding in its construction an arm,a fitting mounted to swivel on thesame,;means'to fix thetwo relatively, a rod carried by saidfittingadapted to turn within the same, a member adjustable on the arm,said rod extending therethrough, means to securetherod relative tothemember,means to secure the member with respect to the'arm, and astandard on which the said. arm isswiveled to swing in a plane disposedat right angles to the-axis ot the rod. V

2. A stand for supporting the c 'ank case of ail-automobileincluding inits constructionan arm, a fittinganounted to swivel thereon in asingleplane, means to fix the tworelatively, a rod carried bythe fittingto move with it and also adapted to turn axially therein, a memberhaving a bearmg within which'the said rod is free to turn, means tofix't-he rod against axial movement, means to clamp the member to thearm'in adjusted positions, and a standard on which the arm is swiveledwhereby to swing ina plane at right angles to the plane of movementotthe said fitting.

3. A. standior supporting the crank case of an. automobile including inits construction an arm, a fitting mounted to swivel thereon in a singleplane, means to fixthe two relatively, a rod carried by the fitting tomove with it and also adapted to turn axially within it, a cross memberat each end of the rodupon which to secure detachably the crank case, amember having a hearing within which the said rod is tree to turn, meansto fix the rod against axial movement, means to clamp the member to thearm, in adjusted positions, and a stand ard on which the arm is swiveledwhereby to swing in a plane at right angles to the plane of movement ofthe said fitting.

4:. A stand for supporting the crank case of an automobile including inits construction an arm, .a fitting mounted to swivel thereon in asingle plane, means to lix the two relatively, a rod carried by thefitting to move with it and also adapted to turn axially within it, amember having :1 hear ing within which the rod is free to turn, means toprevent longitudinal shifting of the rod, means to fix the rod againstaxial movement, means to clamp the member to the arm in adjustedpositions, and a standard on which the arm is swivelcd whereby to swingin a. plane at right angles to the plane of movement of the saidfitting.

5. A stand for the purposes named including a standard, an arm mountedthereon adapted for adjustment to various positions. means to secure thearm with respect to the standard, a fitting swiveled on the arm adaptedto swing to various positions, a rod mounted for axial movement in thefitting, a member encircling the rod, a clamping device at said memberfor securing the rod with respect thereto, and means to secure thememberand arm relatively.

6. A stand for the purposes named including a standard, an arm pivotedthereon adapted for adjustment in a given plane, a fitting swiveled onthe arm adapted tor movement in adiflerent plane, a member formed in anare described from the point of support of the fitting, a rod mounted inthe fitting andextending through one end of the member and adapted torock with respect to both, means to secure the rod with respect to thefitting and said member, and means to secure the latter with respect tothe arm.

In testimony whereof I ailix my signatul'n in presence of two witnesses.

FRANK l. StllAAl \Vitnesses C. F. AoI-rAMInn, J. P. IIAYNES.

